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#!perl
# Test the Maxrecurse option
use strict;
use Test::More tests => 32;
use Data::Dumper;
SKIP: {
skip "no XS available", 16
if $Data::Dumper::Useperl;
local $Data::Dumper::Useperl = 1;
test_recursion();
}
test_recursion();
sub test_recursion {
my $pp = $Data::Dumper::Useperl ? "pure perl" : "XS";
$Data::Dumper::Purity = 1; # make sure this has no effect
$Data::Dumper::Indent = 0;
$Data::Dumper::Maxrecurse = 1;
is(eval { Dumper([]) }, '$VAR1 = [];', "$pp: maxrecurse 1, []");
is(eval { Dumper([[]]) }, undef, "$pp: maxrecurse 1, [[]]");
ok($@, "exception thrown");
is(eval { Dumper({}) }, '$VAR1 = {};', "$pp: maxrecurse 1, {}");
is(eval { Dumper({ a => 1 }) }, q($VAR1 = {'a' => 1};),
"$pp: maxrecurse 1, { a => 1 }");
is(eval { Dumper({ a => {} }) }, undef, "$pp: maxrecurse 1, { a => {} }");
ok($@, "exception thrown");
is(eval { Dumper(\1) }, "\$VAR1 = \\1;", "$pp: maxrecurse 1, \\1");
is(eval { Dumper(\\1) }, undef, "$pp: maxrecurse 1, \\1");
ok($@, "exception thrown");
$Data::Dumper::Maxrecurse = 3;
is(eval { Dumper(\1) }, "\$VAR1 = \\1;", "$pp: maxrecurse 3, \\1");
is(eval { Dumper(\(my $s = {})) }, "\$VAR1 = \\{};", "$pp: maxrecurse 3, \\{}");
is(eval { Dumper(\(my $s = { a => [] })) }, "\$VAR1 = \\{'a' => []};",
"$pp: maxrecurse 3, \\{ a => [] }");
is(eval { Dumper(\(my $s = { a => [{}] })) }, undef,
"$pp: maxrecurse 3, \\{ a => [{}] }");
ok($@, "exception thrown");
$Data::Dumper::Maxrecurse = 0;
is(eval { Dumper([[[[[]]]]]) }, q($VAR1 = [[[[[]]]]];),
"$pp: check Maxrecurse doesn't set limit to 0 recursion");
}
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